When doing up a house with finite resources, what items / types of work have to be "gold standard" and where would a decent value alternative suffice? I'd think it is similar to selecting what to wear: one can look polished in a tailored Armani suit with an Asos top. So if the aspiration is elegant home, what should one splurge and skimp on?
An often sited example is to use IKEA carcasses for the kitchen and wardrobes and to put higher quality doors and countertop. Anything else?
Does it matter whether invisible bits like electrics and plumbing are top of the market? (I don't even know if there is a Lagerfeld equivalent of pipework. Probably some German super-engineered solution?)
What elements add instant luxurious feel to an otherwise ordinary room? (I do not mean furniture and ornaments but fixtures and finishes of the house - floors, wall paint, ceiling cornicing, marble fireplace etc.)
Views?